A and B can complete a work in 30 days and 40 days.
respectively. If the efficiency of A increase in the ratio
of 4:5 while efficiency of B is Decreased in the
ration of 54. Calculate in how much time to
Complete the whole work.
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Answer:
16.22 Days
Step-by-step explanation:
A can complete work in 30 days
A's 1 day work = 1/30
A's efficiency increased in ratio of 4: 5
now A's 1 day work = (1/30) * (5/4) = 1/24
B can complete work in 40 days
B's 1 day work = 1/40
B's efficiency decreased in ratio 5: 4
now B's 1 day work = (1/40) * (4/5) = 1/50
Now A's & B's together 1 day work = 1/24 + 1/50
= (1/600)(25 + 12)
= 37/600
Total number of days required = 600/37 = 16.22 Days
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